Free Shipping on Order $75+ (Restrictions Apply)

Need help? Our support team is ready to assist you (¡Se habla español!)
e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver
e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver
Load image into Gallery viewer, e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver
Load image into Gallery viewer, e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver

SKU: CK1411

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver

E*thirteen
$219.95
$219.95 $219.95
Sale Sold out
/
Shipping calculated at checkout.
Expected Ship Date: Tue Jul 14
🚚 This item ships FREE
This is a pre order item. We will ship it when it comes in stock.
e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm with Self Extractor Silver. A high-performance weight-optimized alternative to carbon fiber for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4 Brose S Mag TQ HPR 50 Fazua Yamaha Maxon and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E-Enduro standards.
  • TECH SPECS
Color SilverCrank Length (mm) 165Pedal Spindle 9/16"Spindle Interface Type ISISDesigned for ebike YesDefined Color Silver
Ride Confidently. Shop NexGen.

Ride Confidently. Shop NexGen.

At NexGen, we don’t just sell bikes—we live the ride. What started as a passionate shop has grown into a full-service destination dedicated to helping riders get the most out of every mile.

Every product we carry is chosen with performance, reliability, and real-world riding in mind.

Premium Brands
We carry trusted, high-performance products—no fillers.


Fast, Reliable Shipping
Get what you need quickly and ride sooner.


Real Rider Support
Expert help from people who actually ride, race, and explore.


A Shop You Can Trust
Real team. Real service. We stand behind every order.

Learn More